Thanks cowski. A VB example would be very helpful. I did find functions that allow it, but an example would be most helpful. I see
https://docs.plm.automation.siemens.com/data_services/resources/nx/11/nx_api/custom/en_US/ugopen_doc/uf_weight/global.html#UF_WEIGHT_assert_comp_prop and...
In thread https://www.eng-tips.com/viewthread.cfm?qid=411238 cowski and others mention using
ufs.weight.EstabPartProps1(c.tag,0.99,1,units,weight,wexpect)
ufs.weight.askprops(c.tag,units,weight)
to set (?) and query weight, the implication I think was that you could write an OpenNX program to...